Changeset 119795 in webkit for trunk/Source/JavaScriptCore/runtime/JSGlobalData.h

Timestamp:

Jun 7, 2012, 9:25:58 PM (13 years ago)

Author:

[email protected]

Message:

DFG should inline prototype chain accesses, and do the right things if the
specific function optimization is available
​https://bugs.webkit.org/show_bug.cgi?id=88594

Patch by Filip Pizlo <​[email protected]> on 2012-06-07
Reviewed by Gavin Barraclough.

Looks like a 3% win on V8.

• bytecode/CodeBlock.h:

(JSC::Structure::prototypeForLookup):
(JSC):

• bytecode/GetByIdStatus.cpp:

(JSC::GetByIdStatus::computeFromLLInt):
(JSC):
(JSC::GetByIdStatus::computeForChain):
(JSC::GetByIdStatus::computeFor):

• bytecode/GetByIdStatus.h:

(JSC::GetByIdStatus::GetByIdStatus):
(JSC::GetByIdStatus::isSimple):
(JSC::GetByIdStatus::chain):
(JSC::GetByIdStatus::specificValue):
(GetByIdStatus):

• bytecode/StructureSet.h:

(StructureSet):
(JSC::StructureSet::singletonStructure):

• bytecode/StructureStubInfo.h:

(JSC::StructureStubInfo::initGetByIdProto):
(JSC::StructureStubInfo::initGetByIdChain):

• dfg/DFGByteCodeParser.cpp:

(JSC::DFG::ByteCodeParser::handleGetById):

• dfg/DFGRepatch.cpp:

(JSC::DFG::tryCacheGetByID):

• jit/JITStubs.cpp:

(JSC::JITThunks::tryCacheGetByID):

• runtime/JSGlobalObject.h:

(JSC::Structure::prototypeForLookup):
(JSC):

• runtime/Structure.h:

(Structure):

File:

• trunk/Source/JavaScriptCore/runtime/JSGlobalData.h (modified) (2 diffs)

trunk/Source/JavaScriptCore/runtime/JSGlobalData.h

@@ -39 +39 @@
 #include "LLIntData.h"
 #include "NumericStrings.h"
+#include "PrivateName.h"
 #include "SmallStrings.h"
 #include "Strong.h"
@@ -282 +283 @@
 #endif
 
+        PrivateName m_inheritorIDKey;
+
         OwnPtr<ParserArena> parserArena;
         OwnPtr<Keywords> keywords;